With patented nitrifying bacteria, BIO-Spira® accelerates the establishment of the bio-filter in newly set up saltwater aquariums. The live bacteria start working immediately to provide a safe and healthy environment for your fish without the long wait. BIO-Spira can also be used after a water change, when adding new fish or after medicating.

• Live nitrifying bacteria start working immediately to reduce dangerous ammonia and nitrite
• Prevents new tank syndrome
• Patented mix of nitrococcus, nitrosomonas, nitrosospira and nitrospira is proven to work
• Shelf-stable – requires no refrigeration
• 5 mL treats 10 gallons of water